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Sequence Analysis of the Nucleocapsid Protein Gene of the Porcine Reproductive and Respiratory Syndrome Virus Taiwan MD-001 Strain

  • L. L. Chueh
  • K. H. Lee
  • F. I. Wang
  • V. F. Pang
  • C. N. Weng
Chapter
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 440)

Abstract

The 3′-portion of the genome from a Taiwan isolate of porcine reproductive and respiratory syndrome (PRRS) virus, strain MD-001, was cloned and sequenced. The resultant 549 nucleotides contained an open reading frame with a coding capacity of 123 amino acids (predicted Mr 13 600). The predicted protein corresponds to the nucleocapsid protein, the gene product of ORF7. Comparative sequence analysis of several known PRRSV strains indicated that this protein showed the highest degree of amino acid similarity to the US VR2332 and the Canadian IAF-Exp91 strains (92.7%) and the least to the Dutch Lelystad strain (56.5%). The phylogenic trees constructed on the basis of the known PRRSV nucleotide sequences indicated that MD-001 strain belongs to the North American strain cluster and that it is distinct from the European virus.

Keywords

Nucleocapsid Protein Respiratory Syndrome Virus Equine Arteritis Virus Lelystad Virus North American Strain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • L. L. Chueh
    • 1
  • K. H. Lee
    • 1
  • F. I. Wang
    • 1
  • V. F. Pang
    • 1
  • C. N. Weng
    • 2
    • 3
  1. 1.Department of Veterinary MedicineNational Taiwan UniversityTaipeiTaiwan
  2. 2.Pig Research InstituteTaiwan
  3. 3.ChunanMiaoliTaiwan

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